Surface-gage.



T. KOPINSKL- v SURFACE GAGE.

APPLICATION FILED N OV- Z5, I914. A L1 35 m Patented A111. 13, I915.

2 SHEETS-SHEBT l.

WM w/QMM .4 r" I I i I w/.%. 3 %/U@ r I I T. KOPINSKI.

SURFACE GAGE.

APPLICATION FILED NOV. 25. 1914.

L1 @5M%1 m Pa en ed Apr. 13, 1915.

2 SHEETS-SHEET 2.

tit)

THOMAS KOPINSKI, OF ROCHESTER, NEWYORK.

sunraoneaon.

' Specification of Letters Patent. 1 Patented Apt. 1L3, A9115.

Application'filed. November 25,1914. Serial No. 874,007.

provide a gage and scriber having an ad-,

just-able needle swingingly mounted whereby the base of the instrument may be moved upon either straight or curved work for scribing either a straight line or acurve while the base may also be moved along the edge of 'a planer bed or in contact with any slots or grooves therein for the purpose of scribing straightor parallel lines. 1

A further object is to provide a standard carrying trammel bar. adjustably pivoted and slidably mounted upon a disk revoluloly engaging the instrument base whlle the .base is provided with an opening-adapted to reforming positioning means whereby the instrument is adapted toseat upon a cylindrical shaft or like piece in a planeparallel with the axis of the piece it engages. v

With these general objects in view, and,

others that will appear as the .nature of the invention is better understood, the same con; sists in the novel combination and arrangement of parts hereinafter more fully .de scribed, illustrated in the accompanylng drawings and set forth in the appended claims.

In-the drawings forming apart ofthisapplication and in which like-designatlng characters refer to corresponding parts throughout theseveral views, Figure 1 is a perspective view of the device. Fig; 2 is a side elevation thereof with the instrument base and the needle bar with its mounting elements shown in section,- and having a jointed standard. Fig. '3. isa central transverse sectional view taken through the instrument base with the standard horizontally positioned as illustrated in Fig. 2. Fig. 4 is a transverse sectional view through the standard slide and with 'the needle bar shown in side elevation, and Fig. 5 is a perspoctive view of a part of the jointed form of standard.

Referring more in detail to the drawings a base block 10'is provided which is preferabl rectangular in horizontal cross section and may be formed of wood although an other suitable material may be employed spirit level 11 is positioned upon the upper face of the base block while a substantially central perforation or bore 12 is provided through the block. A disk 13 havin periperal graduations 14 thereon is revo ubly mounted above the bore 12 and has its upper face flush with the top face of the block the disk being seated within an annular socket- 15 in the top of the block concentric with the bore 12 and is mounted upon anti-friction balls 16 within an annular race-way 17 formed in the block. A set screw 45 is inserted through the disk 13 and engages within a socket 46 of the block 1 0 for retaining the disk fixedly positioned when desired.

The disk 13 has a central perforation 18- therethrough in alinement with the bore 12 while a standard or ruler 19 is pivotally mounted between spaced triangular shaped ears 20 positioned upon the upper face of the disk 13 and upon,either side of the perceive the lower end of the standard and.

foration 18 it being noted that a pivot bolt 21 connects said ears and passes through the central longitudinal slot 22 of the standard while a Winged nut 23 may be adjusted for retaining the standard in any adjusted positionfwhich may be derived by sliding the standard longitudinally as well as moving the same pivotally upon the. said bolt 21. A graduated ring 24 is secured to the top of standard 19 being longitudinally slidable thebase block by means of screws 25 and .overlaps the disks 13 forpreventing its removal from the socket 15 while alsofurnishthereon and has an adjusting screw 27 y whereby. the slider may be retained at any adjusted position, while a transverse bolt 28 carried by the slider extends through the standard slot 22 and has a winged set nut 29 threaded upon one end thereof by means of which also the slider may be adjustably secured to the standard. I

A needle or tra'nnnel bar 30 is slidably mounted in a bracket 31 which bracket is rotatably secured'to one end of the slider 26. A set screw 32 is carried by the bracket 31 and is adapted to engage the bar 30 when slidaloly positioned as desired therein. llhe bracket 31 has a base plate 33 which flatly engages the end of the slider which is opposite to the end thereof upon which they screw 27 is mounted, while a socket 34 of the slider has an extension 35 ofthe bracket revolubly mounted therein and retained against removal by a screw 36 positioned with its end extending into an annular groove 37 of the said extension.

The standard shown in Fig. 1 consists of a single piece of material, while in Fig. 2, the standard is shown as consisting of two pieces 38 and 39 secured together by means of screws 40 which provides identically the Same form of standard but having additional length, the standard in either event being provided with different length graduatlons 41 and 42 upon the portions thereof positioned at opposite sides of the slot 22.

From this detailed description of the device it will be seen that the base block may be leveled upon the planer bed or pattern by means of the spirit level 11, while the needle- :bar may be ad usted as desired within its bracket as well as at the desired angle to the standard while the, slider may be readily changed and fixed in its position and the standard may also be rotated and slidably moved upon the bolt 21, whereby any desired relative angle and position of the needle point 43 or the head 44 thdreof may be obtained.

When desired to mark out or scribe the outline of a groove in a piece of work upon the planer, the lower end of the standard may be projected through the perforation I 18 and the bore 12 of the base block and may then be placed against the edge of or in one' of the grooves of the planer bed and with the needle pomt properly adjusted, the base block may be then slid along for scratching a line with the needle point and by shifting' the needle or the standard other lines may lie-drawn parallel thereto. It will also be A evident. that a curved line may be drawn in a similar manner which will be parallel to I the, edgeof a curvedor a circular object,

while the base may be readily slid along or 1.1 on a shaftwhen the standardis projected rough thebase in the manner described. The invention therefore affords -a convenient device employable as a Surface gage, alevel, a trammel gage and a scribing gage and is adapted for the use of machinists in the placing and gaging of work when using aplane'r o'r-lathe as well as in erecting machinery and other articles. 7 w While the form of the invention herein shown and described is what is believed to be the preferred embodiment thereof, it is nevertheless to be understood that ,minor changes may bemade without departing. from the spirit and scope of the invention as I at forth in theclaims.

What I claim as new is 1. A surface gage comprising'a base block having an opening therethrough and an annular socket concentric with said opening at the upper end thereof, a disk revolubly mounted within said socket and having a central perforation in alinement with said opening, spaced ears upon said disk at opposite sides of said perforation, a longitudinally slotted standard pivotally and slidably mounted between said cars at a' point above the perforation of said disk, and a needle bar adjustably positioned upon said standard.

2. A gage comprising a base having an opening therethrough, a disk revolubly mountedupon said base and having a perforation in alinement with the said opening, spaced ears upon said disk adjacent the said opening, a bolt spanning the space hetween the said ears, a standard having a longitudinal slot therethrough slidably and rotatably mounted upon the said bolt, a set nut upon said bolt, a slider adjustably positioned upon the said standard and a needle bar slidably and'revolubly mounted upon said slider.

3. A gage comprising a base having an opening therethrough', a disk anti-frictionally mounted for rotation upon said base and; having a perforation concentric with the said opening, a standard having a longitudinal slot therethroug'h pivotallyand slidably mounted upon the said disk, a slider frame adjustably positioned upon the said standard, a bracket rotatably mounted upon one side faceof said bracket, a needle bar slidably mounted within said bracket, and aretaining set screw "for said bagi 4. A'gage comprising a base lock having an opening therethrough, and an annular socket concentric with said opening, a graduated disk mountedrotatably within the said socket,-' .a graduated ring upon saicl block, overlapping the said 'disk, a standard pivotally'and slidably mounted upon the said disk, said disk having a perforation therein alinin with the said opening, said standard provi ed with a longitudinal slot forming opposite side portions provided with gradu ations; a frame slidably mounted. upon the saidlstandard, a needle bar pointed at one end and headed atthe other, said needle bar being slidably and rotarily mounted upon the said frame and having graduations upon one side thereof.

In testimony whereof I afiix my signature in presence of two witnesses. 

